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将所有backdrop-filter模糊效果替换为opacity半透明，提升网页性能
// ==UserScript==
// @name 无差别模糊效果优化器
// @namespace http://tampermonkey.net/
// @version 1.0
// @description 将所有backdrop-filter模糊效果替换为opacity半透明，提升网页性能
// @author Your Name
// @match *://*/*
// @grant none
// @run-at document-start
// ==/UserScript==
(function() {
'use strict';
// 处理backdrop-filter相关样式
function optimizeBlurEffects() {
// 处理内联样式
document.querySelectorAll('*').forEach(element => {
const style = element.style;
if (style.backdropFilter || style.webkitBackdropFilter) {
// 将模糊效果转换为半透明
let opacityValue = 0.8; // 默认透明度
// 根据模糊程度调整透明度
const blurMatch = (style.backdropFilter || style.webkitBackdropFilter).match(/blur\(([^)]+)\)/);
if (blurMatch) {
const blurValue = blurMatch[1];
if (blurValue.includes('px')) {
const pxValue = parseFloat(blurValue);
// 模糊值越大，透明度越低（越不透明）
opacityValue = Math.max(0.3, 1 - (pxValue / 50));
}
}
// 彻底移除模糊效果
style.backdropFilter = 'none';
style.webkitBackdropFilter = 'none';
// 设置背景色和透明度
if (!style.backgroundColor || style.backgroundColor === 'transparent') {
style.backgroundColor = `rgba(255, 255, 255, ${opacityValue})`;
} else {
// 如果已有背景色，调整其透明度
const bgColor = style.backgroundColor;
if (bgColor.startsWith('rgba')) {
const rgbaMatch = bgColor.match(/rgba\((\d+),\s*(\d+),\s*(\d+),\s*([\d.]+)\)/);
if (rgbaMatch) {
style.backgroundColor = `rgba(${rgbaMatch[1]}, ${rgbaMatch[2]}, ${rgbaMatch[3]}, ${opacityValue})`;
}
} else if (bgColor.startsWith('rgb')) {
const rgbMatch = bgColor.match(/rgb\((\d+),\s*(\d+),\s*(\d+)\)/);
if (rgbMatch) {
style.backgroundColor = `rgba(${rgbMatch[1]}, ${rgbMatch[2]}, ${rgbMatch[3]}, ${opacityValue})`;
}
} else if (bgColor.startsWith('#')) {
// 处理十六进制颜色
const hex = bgColor.replace('#', '');
let r, g, b;
if (hex.length === 3) {
r = parseInt(hex[0] + hex[0], 16);
g = parseInt(hex[1] + hex[1], 16);
b = parseInt(hex[2] + hex[2], 16);
} else {
r = parseInt(hex.substring(0, 2), 16);
g = parseInt(hex.substring(2, 4), 16);
b = parseInt(hex.substring(4, 6), 16);
}
style.backgroundColor = `rgba(${r}, ${g}, ${b}, ${opacityValue})`;
}
}
}
});
// 处理CSS样式表 - 更激进的方式
const stylesheets = document.styleSheets;
for (let i = 0; i < stylesheets.length; i++) {
try {
const rules = stylesheets[i].cssRules || stylesheets[i].rules;
for (let j = 0; j < rules.length; j++) {
const rule = rules[j];
if (rule.style && (rule.style.backdropFilter || rule.style.webkitBackdropFilter)) {
// 直接修改规则
if (rule.style.backdropFilter) {
rule.style.backdropFilter = 'none';
}
if (rule.style.webkitBackdropFilter) {
rule.style.webkitBackdropFilter = 'none';
}
// 添加半透明背景
if (!rule.style.backgroundColor || rule.style.backgroundColor === 'transparent') {
rule.style.backgroundColor = 'rgba(255, 255, 255, 0.8)';
}
}
}
} catch (e) {
// 跨域样式表可能会抛出安全错误，忽略即可
}
}
}
// 创建全局样式覆盖所有backdrop-filter
function createGlobalOverride() {
const style = document.createElement('style');
style.textContent = `
* {
backdrop-filter: none !important;
-webkit-backdrop-filter: none !important;
}
[style*="backdrop-filter"],
[style*="-webkit-backdrop-filter"] {
backdrop-filter: none !important;
-webkit-backdrop-filter: none !important;
}
`;
document.head.appendChild(style);
}
// 监听DOM变化，处理动态添加的元素
const observer = new MutationObserver(function(mutations) {
let shouldOptimize = false;
mutations.forEach(function(mutation) {
if (mutation.addedNodes.length > 0) {
shouldOptimize = true;
}
});
if (shouldOptimize) {
setTimeout(optimizeBlurEffects, 50);
}
});
// 初始化优化
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', function() {
createGlobalOverride();
optimizeBlurEffects();
observer.observe(document.body, {
childList: true,
subtree: true
});
});
} else {
createGlobalOverride();
optimizeBlurEffects();
observer.observe(document.body, {
childList: true,
subtree: true
});
}
// 定期检查，确保没有漏网之鱼
setInterval(optimizeBlurEffects, 1000);
console.log('无差别模糊效果优化脚本已加载 - 所有模糊效果已被替换');
})();